SSC Junior Engineer Question Papers for CIVIL 5

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1 of 18 (PAPERI ) 1. The timber preservative creosote belongs to the group of a. Water soluble salts b. Organic solvent type c. Tar oil type d. Inorganic solvent type 2. The strength of timber is maximum in a direction a. Parallel to the grains b. Perpendicular to the grains c. 450 to the grains d. 300 to the grains 3. When a Ist class brick is immersed in cold water for 24 hours, it should 1101 absorb water by weight more than a. 15% b. 20% c. 25% d. 30% 4. Match List-I with List-II and select the correct answer using the code given below the Lists: List - I (Species) A. Babul B. Ben teak C. Bijsal D. Mulbury List-Il (Uses) 1. Tennis rackets (sports goods) 2. Boats 3. Agricultural tools 4. Furniture A B C D a. 4 1 3 2 b. 3 2 4 1 c. 4 2 3 1 d. 3 1 4 2 5. The temperature at which the bricks are burnt in kiln vanes from a. 500 to 8000 C b. 800 to 10000 C c. 1000 to 1200 C d. 1200 to 1500 C 6. Match List-I with List-II and select the correct answer using the code given below the Lists : List-I (Job Requirement) A. High early strength B. Lining for canals C. Frost and acid resistance D. Marine Structure List-II (Type of Cement Binder) 1. Pozzolanic cement 2. Rapid hardening 3. Sulphate resisting 4. High Alumina A B C D a. 1 4 3 2 b. 2 3 4 1 c. 1 3 4 2 d. 2 4 3 1 7. As per specifications, the initial setting time of ordinary Portland cement should not be less than a. 10 minutes b. 20 minutes c. 30 minutes 60 minutes 8. In cements, generally the increase in strength during a period of 14 days to 28 days is primarily due to a. C3A b. C2S c. C3S d. C4AF 9. What is the approximate ratio of the strength of cement concrete at 7 days to that at 28 days curing ? a. 0.40 I.E.S-(OBJ) 2006 C CI I V VI I L L E EN NG GI I N NE EE ER RI I N NG G Downl oad Quest i on Papers:www.naukri buzz.comwww.naukribuzz.com 2 of 18b. 0.65 c. 0.90 d. 1.15 10. Which one of the following properties of cement concrete is ascertained by conducting compaction factor test ? a. Bulk density b. Compressive strength c. Modulus of rupture d. Workability 11. As per IS 4562000, which one of the following correctly expresses the modulus of elasticity of concrete ? (read with the relevant units) a. Ee = 0.7ckf b. Ee = 500ckf c. Ec = 5000 ckf d. Ec = 5700 ckf 12. The mix design for pavement concrete is based on a. The flexural strength b. The characteristic compressive strength c. The shear strength d. The bond strength 13. If G is the modulus of rigidity, E the modulus of elasticity and the Poissons ratio for a material, then what is the expression for G? a. 32(1 2 )EG=+ b. 5(1 )EG=+ c. 2(1 )EG=+ d. (1 2 )EG=+ 14. A thin cylinder of thickness t, width b and internal radius r is subjected to a pressure p on the entire internal surface. What is the change in radius of the cylinder ? ( is the Poissions ratio and E is the modulus of elasticity) a. 2(2 ) p rEt b. 2(2 ) prEt c. 2(2 )2prEt d. 2(1 ) pEt 15. A bar of 40 mm diameter and 400 mm length is subjected to an axial load of l00 kN. It elongates by 0.150 mm and the diameter decreases by 0.005 mm. What is the Poissions ratio of the material of the bar ? a. 0.25 b. 0.28 c. 0.33 d. 0.37 16. The Mohrs circle given above corresponds to which one of the following stress conditions a. b. c. d. Downl oad Quest i on Papers:www.naukri buzz.comwww.naukribuzz.com 3 of 1817. Match List I with List II and select the correct answer (o = direct stress, t = shear stress, Mx = Bending moment, E = Modulus of elasticity, G = Modulus of rigidity, I = Area moment of inertia, V Volume) ListI (Strain Energy) A. 22vEo B. 22vGt C. 24vGt D. 202LM dxEI} List II (Gradually Applied Load) 1. Axial load 2. Bending Load 3. Shear load 4. Torsional load A B C D a. 2 3 4 1 b. l 4 3 2 c. 2 4 3 1 d. l 3 4 2 18. If the maximum principal stress for an element under biaxial stress situation is 100 MPa (tensile) and the maximum shear stress is also 100 MPa, then what is the other principal stress? a. 200 MPa (tensile) b. 200 MPa (compressive) c. 100 MPa (compressive) d. 0 19. A thin cylindrical tube closed at ends is subjected to internal pressure. A torque is also applied to the tube. The torque is also applied to the tube. The principal stresses p1 and p2 developed are 80.0 units and 20.0 units respectively. If the yield stress is 240 units, then what is the factor of safety according to Maximum shear stress theory? a. 3.00 b. 4.00 c. 5.00 d. 6.00 20. If p1 and p2 are the principal stresses at a point in a strained material with Youngs modulus E and Poissons ratio 1/rn, then what is the principal strain ? a. 1 2p pmE+ b. 1 2p pmE c. 1 2p pE mE d. 1 2p pE mE+ 21. In a two-dimensional stress system, the two principal stresses are p1 = 180 N/mm2 (Tensile), and p2 which is compressive. For the material, yield stress in simple tension and compression is 240 N/mm2 and Poissons ratio is 0.25. According to maximum normal strain theory, for what values of p2 , shall yielding commence? a. 240 N/mm2 b. 180 N/mm2 c. 195 N/mm2 d. 200 N/mm2 22. A simply supported beam AB has span L as shown in the figure above, Point C is the midspan of the beam. It is subjected to u.d.l. w/unit length, in the portion A to C. Which of the following are the SFD and BMD for the beam ? a. b. c. Downl oad Quest i on Papers:www.naukri buzz.comwww.naukribuzz.com 4 of 18d. 23. A beam of square cross section is placed horizontally with one diagonal horizontal as shown in the figure above. It is subjected to a vertical shear force acting along the depth of the cross section. Maximum shear stress across the depth of cross section occurs at a depth x from the top. What is the value of x? a. x = 0 b. x = (2/3) D c. x(3/4)D d. D 24. Which one of the following diagrams indicates the shear stress distribution for the beam as shown in the figure above? a. b. c. d. 25. For the circular shaft AB, as shown in the figure above, a torque T is applied at the section XX at C, such that b/a = 1.5. The shaft is uniform in section. What is the ratio of TA/TB? a. 3 b. 1.5 c. 0.67 d. 0.5 26. The failure surface of a standard cast iron torsion specimen, subjected to a torque is along a. the surface helicoidal at 450 to the axis of the specimen b. the curved surface at the grips c. the plane surface perpendicular to the axis of the specimen d. the curved surface perpendicular to the axis of the specimen 27. A horizontal beam shown in the figure given above is subjected to transverse loading. Which one of the following diagrams represents the distribution of shear force along the crosssection ? a. b. Downl oad Quest i on Papers:www.naukri buzz.comwww.naukribuzz.com 5 of 18c. d. 28. What is the force in number AB of the pinjointed frame as shown above ? a. P (Tension) b. P (Compression) c. P / 2 (Compression) d. Zero 29. Which one of the following diagrams corresponds to the influence line diagram for moment at A of the beam shown above in the figure? a. b. c. d. 30. Which one of the following is the correct BMD for the loaded uniform sized beam as shown in the figure given above? a. b. c. d. 31. Consider the following statements 1. Even though a threehinged parabolic arch is subjected only to vertical loads, it generates horizontal reactions and axial forces. 2. A cable uniformly loaded along the horizontal span assumes the shape of a parabola, whereas a cable uniformly loaded along its length takes the shape of a catenary. 3. Cables loaded uniformly along the horizontal span are by far the types most commonly used structures in practice. Which of the statements given above is/are correct ? a. Only 1 b. Only 2 and 3 c. Only 1 and 2 d. 1, 2 and 3 32. Match List-I with List-II and select the correct answer using the code given below the Lists : List-I (Loading Condition) A. Cantilever with concentrated load W at end B. Cantilever with udi (w/unit length) across the complete span (W = wl) C. Simply supported beam with concentrated load W at the centre D. Simply supported beam with udl (w/unit length) across complete span (W=wl) Downl oad Quest i on Papers:www.naukri buzz.comwww.naukribuzz.com 6 of 18List-II Maximum Slope) 1. W12/16 El 2. W12/24 El 3. W12/2 El 4. W12/6 El A B C D a. 1 2 3 4 b. 3 4 1 2 c. l 4 3 2 d. 3 2 1 4 33. A cantilever truss carries a concentrated load P as shown in the figure above. What are the magnitudes of axial forces in the members I, II and III, respectively? a. 1.00P, 1.33P & 1.67P b. l.67P, l.33P& l.00P c. 1.33 P, 0.75 P & 1.60 P d. 0.60 P. 0.75 P & 1.0 P 34. Which one of the following is the bending moment diagram for the vertical cantilever beam loaded as shown in the figure above? a. b. c. d. 35. Consider the following statements : Williot-Mohr diagram is used to determine the deflection in 1. an arch. 2. a truss. 3. a rigid frame. Which of the statements given above is/are